Imaging System Patents (Class 250/370.08)
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Patent number: 8507870Abstract: An imaging apparatus has an imaging area formed by arranging a plurality of imaging blocks each including a pixel array, a plurality of vertical signal lines, a horizontal output line commonly provided for the plurality of vertical signal lines to read out signals read out to the plurality of vertical signal lines, a first scanning circuit, and a second scanning circuit, wherein signals of the pixels of a selected row in the pixel array are read out to the plurality of vertical signal lines in accordance with a driving pulse from the first scanning circuit, the signals read out to the plurality of vertical signal lines are sequentially read out to the horizontal output line in accordance with a driving pulse from the second scanning circuit, and a length in a row direction of the pixel array is smaller than a length in a column direction of the pixel array.Type: GrantFiled: June 7, 2011Date of Patent: August 13, 2013Assignee: Canon Kabushiki KaishaInventors: Yu Arishima, Yuichiro Yamashita, Masaru Fujimura, Shin Kikuchi, Shoji Kono, Shinichiro Shimizu
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Patent number: 8507871Abstract: The present invention provides a radiation detecting element and a radiographic imaging device that may reliably detect irradiation of radiation even when a region where radiation is irradiated is set narrowly. Namely, the present invention provides a radiation detection element and a radiographic imaging apparatus, in which radiographic imaging pixels and radiation detection pixels are provided at intersecting portions of scan lines and signal lines.Type: GrantFiled: June 29, 2011Date of Patent: August 13, 2013Assignee: FUJIFILM CorporationInventor: Yoshihiro Okada
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Patent number: 8508639Abstract: A back-illuminated type MOS (metal-oxide semiconductor) solid-state image pickup device 32 in which micro pads 34, 37 are formed on the wiring layer side and a signal processing chip 33 having micro pads 35, 38 formed on the wiring layer at the positions corresponding to the micro pads 34, 37 of the MOS solid-state image pickup device 32 are connected by micro bumps 36, 39. In a semiconductor module including the MOS type solid-state image pickup device, at the same time an image processing speed can be increased, simultaneity within the picture can be realized and image quality can be improved, a manufacturing process can be facilitated, and a yield can be improved. Also, it becomes possible to decrease a power consumption required when all pixels or a large number of pixels is driven at the same time.Type: GrantFiled: July 12, 2005Date of Patent: August 13, 2013Assignee: Sony CorporationInventors: Keiji Mabuchi, Shunichi Urasaki
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Patent number: 8502155Abstract: A radiation sensing device subdivided in N*M pixels, comprising: a conversion part to convert an impinging radiation into an electrical signal, a processing part having: for each pixel, at least two counters associated to different regions, so that a ratio of counters to pixels is at least equal to 2, an arbitration circuit which, for each pixel: receives detection information from the pixel and neighbouring pixels, taking into account detection information for the pixel and neighbouring pixels, allocates a detection value to an elected counter.Type: GrantFiled: August 4, 2009Date of Patent: August 6, 2013Assignee: Organisation Europeenne pour la Recherche NucleaireInventors: Rafael Ballabriga, Michael Campbell, Henrious M. Heijne, Xavier Llopart-Cudie, Richard Plackett, Lukas Tlustos, Winnie Sze-Wing Wong
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Publication number: 20130193333Abstract: A radiographic image capture device includes a radiation detector and a determination section. The radiation detector includes a first sensor for radiographic image capture and a second sensor for radiation detection. The determination section determines whether or not radiation has been detected by the radiation detector based on a ratio of a first value obtained by the first sensor to a second value obtained by the second sensor.Type: ApplicationFiled: December 11, 2012Publication date: August 1, 2013Applicant: FUJIFILM CorporationInventor: Fujifilm Corporation
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Patent number: 8497483Abstract: Embodiments of the invention are concerned with semiconductor circuit substrates for use in a radiation detection device, said radiation detection device comprising a detector substrate having a plurality of detector cells arranged to generate charge in response to incident radiation, each of said detector cells including at least one detector cell contact for coupling charge from said detector cell to said semiconductor circuit substrate.Type: GrantFiled: December 31, 2010Date of Patent: July 30, 2013Assignee: Siemens AktiengesellschaftInventors: Kimmo Puhakka, Iain Benson
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Patent number: 8497463Abstract: A device for counting photons includes a detector unit that is configured to generate an detected signal. A switching unit is configured to be impinged upon by the detected signal and to trigger a switching state for each detection pulse so as to generate a state signal. A sampling unit is configured to sample the state signal at a predetermined sampling frequency. A serial-parallel converter unit is configured to parallelize the serially generated sampled data by grouping successive sampled data into a sampled data packet. An evaluation unit is configured to evaluate the binary values of sampled data packets so as to identify a partial counter result indicating the number of switching state changes occurring in the switching unit, and to add partial counter results identified in individual clock cycles.Type: GrantFiled: July 31, 2012Date of Patent: July 30, 2013Assignee: Leica Microsystems CMS GmbHInventor: Bernd Widzgowski
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Patent number: 8487265Abstract: Imaging detectors and methods of manufacturing are provided. One imaging detector includes a first detector layer within a detector module and a second detector layer within the detector module and spaced apart from the first detector layer, wherein the second detector layer has an opening therethrough. The imaging detector also includes a collimator mounted to the detector module, wherein the collimator is one of a single pinhole collimator or a multi-pinhole collimator. Additionally, the second detector layer is mounted within the detector module closer to an opening of the collimator than the first detector layer.Type: GrantFiled: November 23, 2011Date of Patent: July 16, 2013Assignee: General Electric CompanyInventors: Floribertus P. M. Heukensfeldt Jansen, Yaron Hefetz
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Publication number: 20130168564Abstract: A portable radiation detector is described having an elastomeric enclosure that provides some degree of mechanical shock resistance. In one embodiment, the enclosure encloses some or all of the electronic components of the detector and provides protection against drops and other mechanical shock for the enclosed components. One or more support or stiffening structures may also be provided to protect against impacts, to distribute static loads, and/or to impart a shape to the detector when handled.Type: ApplicationFiled: January 3, 2012Publication date: July 4, 2013Applicant: General Electric CompanyInventors: Nicholas Ryan Konkle, Christopher Jay Morse
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Publication number: 20130170615Abstract: A radiation detector is provided that provides fast sequential image acquisition. In one embodiment, the radiation detector a diode capacitor that is charged in response to a radiation exposure event. The charge stored in the diode capacitor is transferred to a separate storage capacitor, allowing a new charge to be generated and stored at the diode capacitor.Type: ApplicationFiled: December 28, 2011Publication date: July 4, 2013Applicant: General Electric CompanyInventors: Ching-Yeu Wei, Jeffrey Wayne Eberhard, George Edward Possin
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Patent number: 8478555Abstract: The present invention is a system and methods of improved tomography imaging such as microwave tomography (MWT). An improved inversion technique surrounds the imaging region with an electrically conducting surface to create field distortions producing an improved tomographic image. The improved inversion technique of the present invention creates a new physical situation for proposed imaging systems.Type: GrantFiled: November 21, 2008Date of Patent: July 2, 2013Assignee: University of ManitobaInventors: Colin Gilmore, Joe LoVetri
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Patent number: 8476594Abstract: A PET scanner (8) includes a ring of detector modules (10) encircling an imaging region (12). Each of the detector modules includes at least one detector pixel (24,34). Each detector pixel includes a scintillator (20, 30) optically coupled to one or more sensor APDs (54) that are biased in a breakdown region in a Geiger mode. The sensor APDs output a pulse in response to the light from the scintillator corresponding to a single incident radiation photon. A reference APD (26, 36) also biased in a break-down down region in a Geiger mode is optically shielded from light and outputs a temperature dependent signal. At least one temperature compensation circuit (40) adjusts a bias voltage applied to the sensor APDs based on the temperature dependent signal.Type: GrantFiled: November 19, 2009Date of Patent: July 2, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Thomas Frach, Gordian Prescher, Carsten Degenhardt
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Patent number: 8476597Abstract: When all TFTs are turned on, an electric signal is compared with a first threshold value. If the electric signal is equal to or more than the first threshold value, a first judgment unit judges that X-ray irradiation has been started. A second judgment unit compares second and third threshold values with a first-order differentiation value of an electric signal that is outputted in a state of turning off all the TFTs. If the first-order differentiation value is within or out of a range defined by the second and third threshold values throughout a verification period, the second judgment unit verifies that the judgment of the first judgment unit is correct. When the judgment of the first judgment unit is verified to be correct, the TFTs are kept turned off, and an FPD continuously carries out charge accumulation operation for capturing an X-ray image.Type: GrantFiled: November 23, 2011Date of Patent: July 2, 2013Assignee: FUJIFILM CorporationInventor: Takeshi Kuwabara
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Patent number: 8476596Abstract: A thin film transistor (TFT) array substrate for an X-ray detector that improves a fill factor is disclosed. According to one aspect, the substrate includes a plurality of pixel areas each including a transistor area in which a TFT is formed, and a photodiode area in which a photodiode is formed. A first wire is formed in a first layer disposed in a lower portion of a photodiode layer in which the photodiode is formed, in at least a portion of the transistor area of the photodiode layer, and in a second layer disposed in an upper portion of the photodiode layer. A second wire, insulated from the first wire, extends in the pixel areas and is formed in the second layer. At least one TFT is formed in the transistor area and electrically connected to at least one of the first and second wires.Type: GrantFiled: November 21, 2011Date of Patent: July 2, 2013Assignee: Samsung Display Co., Ltd.Inventor: Chul-Woo Shin
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Patent number: 8466533Abstract: A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.Type: GrantFiled: August 22, 2011Date of Patent: June 18, 2013Assignee: InVisage Technologies, Inc.Inventors: Hui Tian, Edward Sargent
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Patent number: 8466422Abstract: Methods, camera, and a computer-readable medium for registering on a camera display infrared and visible light images of a target scene taken from different points of view causing a parallax error.Type: GrantFiled: August 18, 2009Date of Patent: June 18, 2013Assignee: Fluke CorporationInventors: Kirk R. Johnson, Thomas McManus, John W. Pratten
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Patent number: 8461543Abstract: A radiographic image capturing system includes plural radiographic image capturing devices that carry out an image capturing preparation operation when capturing a radiographic image; and a synchronous control section that carries out control that synchronizes the image capturing preparation operations of the plurality of radiographic image capturing devices.Type: GrantFiled: August 27, 2010Date of Patent: June 11, 2013Assignee: FUJIFILM CorporationInventor: Naoyuki Nishino
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Publication number: 20130126744Abstract: Imaging detectors and methods of manufacturing are provided. One imaging detector includes a first detector layer within a detector module and a second detector layer within the detector module and spaced apart from the first detector layer, wherein the second detector layer has an opening therethrough. The imaging detector also includes a collimator mounted to the detector module, wherein the collimator is one of a single pinhole collimator or a multi-pinhole collimator. Additionally, the second detector layer is mounted within the detector module closer to an opening of the collimator than the first detector layer.Type: ApplicationFiled: November 23, 2011Publication date: May 23, 2013Inventors: Floribertus P.M. Heukensfeldt Jansen, Yaron Hefetz
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Patent number: 8447115Abstract: (a) a measurement F0(x, y, ?t) of the signals detected is provided; (b) on the one hand a first value F1(X, y, ?t) is provided, termed the “integration” value and on the other hand a second value F2(x, y, ?t) termed the “count” value is provided; (c) a value Fe(x0, y0, ?t) of a number of signals is estimated from a combination of first F1(X0, y0, ?t) and second F2(x0, y0, ?t) values, on the basis of a criterion of detection in the neighborhood.Type: GrantFiled: November 30, 2007Date of Patent: May 21, 2013Assignee: Biospace LabInventors: Serge Maitrejean, Olivier Levrey, Pascal Desaute
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Patent number: 8445853Abstract: A method of making a radiation-sensitive apparatus includes providing a first substrate, forming a radiation-sensitive layer over the first substrate, providing a plurality of spatially separated integrated circuits, each integrated circuit having: a second substrate, one or more electronic circuit(s) formed in or on the second substrate, and one or more electrode connection pads formed in or on the second substrate, each electrode connection pad electrically connected to at least one of the electronic circuit(s). A plurality of pixel electrodes is formed over the first substrate separate from the integrated circuit, each pixel electrode electrically connected to an electrode connection pad. An electronic control circuit is electrically connected to each electronic circuit in each integrated circuit.Type: GrantFiled: August 22, 2011Date of Patent: May 21, 2013Assignee: Eastman Kodak CompanyInventor: Ronald Steven Cok
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Patent number: 8440977Abstract: The object of the invention is to realize a light radiation-detecting apparatus including a step of preparing a matrix array including a substrate, an insulating layer arranged on the substrate, a plurality of pixels arranged on the insulating layer, wherein the pixel includes a conversion element converting an incident radiation into an electric signal, and connection electrode arranged at a periphery of the plurality of pixels, fixing a flexible supporting member for covering the plurality of pixels to the matrix array at a side opposite to the substrate, and releasing the substrate from the matrix array.Type: GrantFiled: November 4, 2008Date of Patent: May 14, 2013Inventors: Takamasa Ishii, Chiori Mochizuki, Minoru Watanabe
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Patent number: 8436314Abstract: An imaging apparatus includes a control unit and a detector that includes multiple pixels and that performs an image capturing operation to output image data corresponding to radiation or light that is emitted. The image capturing operation includes a first image capturing operation in a first scanning area corresponding to part of the multiple pixels to output image data in the first scanning area and a second image capturing operation in a second scanning area larger than the first scanning area to output image data in the second scanning area. The control unit causes the detector to perform an accumulation operation in the second image capturing operation in a time determined so that an image artifact caused by the scanning area is lower than a predetermined allowable value on the basis of information about the amount of integration of accumulation times in the first image capturing operation.Type: GrantFiled: August 31, 2010Date of Patent: May 7, 2013Assignee: Canon Kabushiki KaishaInventors: Toshio Kameshima, Tadao Endo, Tomoyuki Yagi, Katsuro Takenaka, Keigo Yokoyama, Sho Sato, Toshikazu Tamura
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Patent number: 8433036Abstract: The invention provides methods, systems and detector arrangements for scanning an object moving in a first direction that includes the steps of irradiating the object with radiation having a peak energy of at least 900 keV, providing a first detector region having a thickness of at least 2 mm and a second detector region having a thickness of at least 5 mm where the second detector region is arranged to receive radiation that has passed through the first detector region, and detecting the radiation after it has interacted with or passed through the object in order to provide information relating to the object.Type: GrantFiled: February 25, 2009Date of Patent: April 30, 2013Assignee: Rapiscan Systems, Inc.Inventor: Edward James Morton
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Patent number: 8431905Abstract: A FPD includes a signal processing circuit and noise detecting elements provided for each group containing plural columns of pixels. The signal processing circuit converts signal charges accumulated in the pixels into electric signals and outputs the electric signals. Each of the noise detecting elements has the same structure as that of the pixel, but does not have a function of accumulating the electric charges. A voltage signal of the noise detecting element represents noise components. A subtractor subtracts the voltage signal of the noise detecting elements from a voltage signal of the pixels which is outputted from the noise processing circuit.Type: GrantFiled: November 30, 2011Date of Patent: April 30, 2013Assignee: FUJIFILM CorporationInventor: Kiyoshi Kondou
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Patent number: 8421023Abstract: A flat panel sensor control unit reads image data from each region formed by dividing a flat panel. A write access control unit writes the image data read by the flat panel sensor control unit in a frame memory. A read access control unit starts reading the image data from the frame memory in response to that the writing of the image data to the frame memory becomes a predetermined state.Type: GrantFiled: September 20, 2011Date of Patent: April 16, 2013Assignee: Canon Kabushiki KaishaInventor: Hidehiko Saito
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Patent number: 8421024Abstract: A cradle for use with a radiation conversion device includes a cradle for carrying out charging of a radiation conversion device, which is disposed in the vicinity of an image capturing apparatus for capturing a radiation image of a subject, and which detects radiation that has passed through the subject and converts the radiation into image information. The cradle is equipped with a charging processor for carrying out charging with respect to a battery mounted in the radiation conversion device, an information acquiring section for acquiring information that includes subject information pertaining to the subject and includes image capturing conditions when the image information of the subject is captured, and a display unit for displaying the acquired information.Type: GrantFiled: January 23, 2009Date of Patent: April 16, 2013Assignee: Fujifilm CorporationInventors: Yasunori Ohta, Naoyuki Nishino, Eiichi Kito, Hiroshi Tamaoki, Tatsuo Iiyama
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Patent number: 8415634Abstract: An apparatus and method for detecting radiation are provided. The apparatus includes an upper electrode layer transmitting radiation; a first photoconductive layer becoming photoconductive upon exposure to the radiation and thus generating charges therein; a charge trapping layer trapping therein the charges generated in the first photoconductive layer; a second photoconductive layer becoming photoconductive upon exposure to rear light for reading out a radiation image; a lower transparent electrode layer charged with the charges trapped in the charge trapping layer; a micro lens layer disposed between the lower transparent electrode layer and a rear light emission unit and including a plurality of micro lenses respectively corresponding to a plurality of pixels; and the rear light emission unit applying the rear light to the second photoconductive layer via the micro lens layer and the lower transparent electrode layer in units of the pixels.Type: GrantFiled: November 29, 2010Date of Patent: April 9, 2013Assignee: Drtech CorporationInventors: Jung-Seok Kim, Byung-Hun Ko, Beom-Jin Moon, Jung-Kee Yoon
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Patent number: 8405036Abstract: A method embodiment for forming an imaging array includes providing a glass substrate having a top surface, forming a patterned conductive layer on the top surface of the glass substrate, and forming an insulating layer on the patterned conductive layer on a side of the patterned conductive layer opposite the glass substrate. The method can include providing a single crystal silicon substrate having an internal separation layer proximate a first surface of the single crystal silicon substrate. The single crystal silicon substrate is secured to the glass substrate such that the first surface of the single crystal silicon substrate corresponds to the insulating layer. The single crystal silicon substrate is separated at the internal separation layer to create an exposed surface opposite the first surface of the single crystal silicon substrate and an array including one or more photosensitive elements and/or readout elements is formed thereon.Type: GrantFiled: August 24, 2010Date of Patent: March 26, 2013Assignee: Carestream Health, Inc.Inventor: Timothy J. Tredwell
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Patent number: 8399846Abstract: Provided is a radiation image detecting system including a cassette type radiation image detecting apparatus capable of being driven by electric power supplied from a built-in battery; a charge controlling circuit to control charging of the battery; a cradle supplying electric power to the radiation image detecting apparatus; and a cable supplying electric power to the radiation image detecting apparatus, wherein the radiation image detecting apparatus includes a connection section being electrically connected to each of the cradle and the cable to receive the electric power; the battery is charged by the cradle being connected to the connection section and by the cable being connected to the connection section; and the charge controlling circuit switches a charging current between a time when the cradle is connected to the connection section and a time when the cable is connected to the connection section.Type: GrantFiled: February 18, 2010Date of Patent: March 19, 2013Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Yukihiro Niekawa, Yoshihiko Eguchi
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Patent number: 8395120Abstract: A bidirectional optical scanner assisting in mammography is revealed. The optical scanner that calculates functional images obtained by diffuse optical tomography, used in combination with a mammography machine can reduce the number of mammograms taken and the dose exposure. The bidirectional optical scanner includes a first compression plate, a first optical detection module, a second optical detection module and a second compression plate. The same test position of the tested breast can be detected twice in different directions by the first and the second optical detection modules. No matter where the tumor is located, the tumor can be detected. Besides structural images provided by the mammography machine, functional tomographic images of the breast are obtained by the bidirectional optical scanner. Thus diagnostic accuracy in the detection of breast cancer is improved.Type: GrantFiled: January 17, 2012Date of Patent: March 12, 2013Assignee: National Central UniversityInventors: Min-Chun Pan, Jhao-Ming Yu, Hung-Chih Chiang, Min-Cheng Pan, Chun-Yu Chen, Liang-Yu Chen
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Patent number: 8395127Abstract: A radiation detector includes an array of detector pixels each including an array of detector cells. Each detector cell includes a photodiode biased in a breakdown region and digital circuitry coupled with the photodiode and configured to output a first digital value in a quiescent state and a second digital value responsive to photon detection by the photodiode. Digital triggering circuitry is configured to output a trigger signal indicative of a start of an integration time period responsive to a selected number of one or more of the detector cells transitioning from the first digital value to the second digital value. Readout digital circuitry accumulates a count of a number of transitions of detector cells of the array of detector cells from the first digital state to the second digital state over the integration time period.Type: GrantFiled: January 9, 2009Date of Patent: March 12, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Thomas Frach, Gordian Prescher
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Publication number: 20130048869Abstract: The present invention provides a radiation measurement device, which shortens periodic interruption periods in the radiation measurements and prevents damage to the amplifier, and a nuclear medicine diagnosis system using such measurement device. The radiation measurement device comprises a semiconductor radiation detector detecting a radiation, a capacitor, which applies voltage to the semiconductor radiation detector, one or more direct current power supplies each capable of making either of positive and negative electric charge collect on one of the electrodes of the capacitor, a constant-current device, which conducts an electric current from the direct current power supplies to the one of the electrodes of the capacitor, and two or more switching devices installed in the wiring connecting the direct current power supplies and the one of the electrodes of the capacitor. Further disclosed is a nuclear medicine diagnosis system equipped with such radiation measurement device.Type: ApplicationFiled: February 10, 2011Publication date: February 28, 2013Applicant: HITACHI, LTD.Inventors: Shinya Kominami, Tomoyuki Seino
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Publication number: 20130048868Abstract: A method of making a radiation-sensitive apparatus includes providing a first substrate, forming a radiation-sensitive layer over the first substrate, providing a plurality of spatially separated integrated circuits, each integrated circuit having: a second substrate, one or more electronic circuit(s) formed in or on the second substrate, and one or more electrode connection pads formed in or on the second substrate, each electrode connection pad electrically connected to at least one of the electronic circuit(s). A plurality of pixel electrodes is formed over the first substrate separate from the integrated circuit, each pixel electrode electrically connected to an electrode connection pad. An electronic control circuit is electrically connected to each electronic circuit in each integrated circuit.Type: ApplicationFiled: August 22, 2011Publication date: February 28, 2013Inventor: RONALD Steven COK
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Publication number: 20130048867Abstract: A radiation-sensitive apparatus includes a first substrate, a radiation-sensitive layer, a plurality of spatially separated integrated circuits, each integrated circuit having: a second substrate, one or more electronic circuit(s) formed in or on the second substrate, and one or more electrode connection pads formed in or on the second substrate, each electrode connection pad electrically connected to at least one of the electronic circuit(s). Pixel electrodes are formed over the first substrate separate from the integrated circuit, each pixel electrode electrically connected to an electrode connection pad. An electronic control circuit is electrically connected to each electronic circuit in each integrated circuit. The electronic circuits are responsive to electrical signals formed by the interaction of electromagnetic radiation and the radiation-sensitive layer, the electrical signals conducted by the pixel electrodes and electrode connection pads.Type: ApplicationFiled: August 22, 2011Publication date: February 28, 2013Inventor: Ronald Steven Cok
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Patent number: 8384036Abstract: Determining the position of a radioactive source in a PET system. Detecting a scatter coincidence event characterized by a full-energy photon detected at a first detector and partial-energy photon at a second detector. Measuring the arrival time difference between the partial energy photon and the full energy photon. Measuring the energy of the partial-energy photon. Determining a scattering point as a function of the position of the first detector, the position of the second detector, the energy of the partial-energy photon, the energy of an unscattered photon, the mass of a scattering electron, and the speed of light. Determining the position of a radioactive PET source along a line between the scatter point and the first detector as a function of the distance between scatter point and the first detector, the distance between scatter point and the second detector, and the measured time difference.Type: GrantFiled: September 11, 2009Date of Patent: February 26, 2013Assignee: Siemens Medical Solutions USA, Inc.Inventor: Maurizio Conti
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Patent number: 8378302Abstract: A bidirectional optical scanner assisting in mammography is revealed. The optical scanner that calculates functional images obtained by diffuse optical tomography, used in combination with a mammography machine can reduce the number of mammograms taken and the dose exposure. The bidirectional optical scanner includes a compression module, a first optical detection module, and a second optical detection module. The same test position of the tested breast can be detected twice in different directions by the first and the second optical detection modules. No matter where the tumor is located, the tumor can be detected. Besides structural images provided by the mammography machine, functional tomographic images of the breast are obtained by the bidirectional optical scanner. Thus diagnostic accuracy in the detection of breast cancer is improved.Type: GrantFiled: February 25, 2011Date of Patent: February 19, 2013Assignee: National Central UniversityInventors: Min-Chun Pan, Hung-Chin Chiang, Chun-Yu Chen, Liang-Yu Chen, Ching-Tang Wu, Min-Cheng Pan
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Patent number: 8378309Abstract: A radiation detector includes a detection unit, a detection control unit, an image analyzing unit and a determination unit. The detection unit detects radiographic image data by plural pixels that convert applied radiation into electrical signals and store the electrical signals. The detection control unit controls the detection unit so as to determine that radiation has been applied if a read value obtained by reading the electric signals stored in the plural pixels is equal to or greater than a threshold value, and acquire radiographic image data corresponding to radiation that has passed through a subject. The image analyzing unit performs an image analysis with respect to the radiographic image if the read value is equal to or greater than the threshold value. The determination unit determines based on the result of the image analysis whether or not the radiographic image has been detected at an intended timing.Type: GrantFiled: October 7, 2011Date of Patent: February 19, 2013Assignee: FUJIFILM CorporationInventor: Jun Enomoto
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Patent number: 8368027Abstract: A radiation detection apparatus comprises a plurality of pixels each including a conversion element which converts incident radiation into a charge, a switching element which transfers the charge, and an interlayer insulation film disposed between the conversion element and the switching element, a gate line to drive the switching element, and a signal line located to intersect with the gate line and configured to read out the charge transferred from the switching element, wherein Ca??0×?×S/d and 7d?P/2 is satisfied, where P is a pixel pitch, Ca is a sum total of coupling capacitances between the signal line and the gate line, S is an overlapping area of the signal line and the conversion element, d is a thickness of the interlayer insulation film, ? is a relative dielectric constant of the interlayer insulation film, and ?0 is a vacuum dielectric constant.Type: GrantFiled: June 29, 2009Date of Patent: February 5, 2013Assignee: Canon Kabushiki KaishaInventors: Takamasa Ishii, Chiori Mochizuki, Minoru Watanabe
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Patent number: 8362437Abstract: There is provided a radiographic imaging device including: a radiation detector; a switching power supply; a storage section; a reading section; and a control section that controls the switching power supply so as to implement switching control and cause electricity to be accumulated in the storage section at a time when charge is not being read by the reading section, and stop switching control at a time when charge is being read by the reading section.Type: GrantFiled: November 27, 2009Date of Patent: January 29, 2013Assignee: FUJIFILM CorporationInventors: Keiji Tsubota, Takashi Shoji, Yutaka Yoshida, Naoyuki Nishino, Kiyoshi Kondou, Yuji Kurachi, Yasunori Ohta
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Publication number: 20130020478Abstract: A radiation control apparatus includes a determination unit configured to determine dose values of exposures to a radiation detector for acquiring correction images, corresponding to measured input-output characteristics of the radiation detector, and a acquisition unit configured to acquire correction data for the input-output characteristics of the radiation detector, based on the correction images acquired from the detector exposed at the determined dose values.Type: ApplicationFiled: July 20, 2012Publication date: January 24, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Takashi Takasaki
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Patent number: 8357909Abstract: In the light or radiation detector of this invention, each of the molding structure, the first member, and the second member is formed such that the molding structure to protect the conversion layer and voltage application electrode has the resistance higher than the first member composed of the planar conductive buffer that is laminated on the (light or radiation) incident surface side of the molding structure, and that the first member mentioned above has the resistance higher than the second member composed of the planar conductive member that is laminated on the incident surface side of the first member. Consequently, occurrence of the noise from the static electricity may be suppressed.Type: GrantFiled: October 23, 2007Date of Patent: January 22, 2013Assignee: Shimadzu CorporationInventor: Toshinori Yoshimuta
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Patent number: 8357908Abstract: A wireless communication control unit controls a transmitting and receiving apparatus so as to prohibit transmission of radiation image information to the outside by wireless communication or power supply from the outside to an electric power source by wireless communication in accordance with an exposure detecting signal from an exposure detecting unit or a conversion detecting signal from a conversion detecting unit. Thus, this can control the transmitting and receiving apparatus not to carry out, at the same period of time, the irradiation of a radiation (X) to a radiation detector, a conversion operation of the radiation image information in the radiation detector, and wireless communication by the transmitting and receiving apparatus.Type: GrantFiled: July 2, 2008Date of Patent: January 22, 2013Assignee: Fujifilm CorporationInventors: Takeshi Kuwabara, Eiichi Kito, Tsuyoshi Tanabe, Takuya Yoshimi, Kazuharu Ueta, Makoto Iriuchijima, Yasunori Ohta
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Patent number: 8354645Abstract: Provided are a radiation sensor having a first flexible substrate provided with a phosphor layer which converts incident radiation into an electromagnetic wave in a wavelength region that is at least different from that of the radiation; an organic photoelectric conversion layer which includes a charge transport layer and a charge generation layer containing a charge transporting agent and 55% by mass to 75% by mass of a polymer binder, and photoelectrically converts the electromagnetic wave; a second flexible substrate provided with a charge detection layer which includes a storage capacitor and a thin film transistor and is adapted to read electrical charge generated at the organic photoelectric conversion layer; and a polymer subbing layer disposed between the organic photoelectric conversion layer and the charge detection layer, and a radiation image detection apparatus using the radiation sensor.Type: GrantFiled: November 23, 2010Date of Patent: January 15, 2013Assignee: FUJIFILM CorporationInventor: Shinji Imai
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Publication number: 20130009068Abstract: The present invention discloses a radiation detector, an imaging device and an electrode structure thereof, and a method for acquiring an image. The radiation detector comprises: a radiation sensitive film, a top electrode on the radiation sensitive film, and an array of pixel units electrically coupled to the radiation sensitive film. Each pixel unit comprises: a pixel electrode (which is configured to collect a charge signal in a pixel area of the radiation sensitive film), a storage capacitor, a reset transistor, a buffer transistor, a column strobe transistor, and a row strobe transistor. The column strobe transistor and the row strobe transistor are connected in series between the buffer transistor and the signal line, and transfer the voltage signal of the corresponding pixel unit in response to a column strobe signal and a row strobe signal. The radiation detector may be used for, for example, X-ray digital imaging.Type: ApplicationFiled: June 30, 2011Publication date: January 10, 2013Applicant: NUCTECH COMPANY LIMITEDInventors: Lan Zhang, Zhiqiang Chen, Ziran Zhao, Wanlong Wu, Yuanjing Li, Zhi Deng, Xiaocui Zheng
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Patent number: 8344329Abstract: Provided is a radiation sensor comprising: a phosphor layer that converts incident radiation into converted light containing a first light component having a first wavelength region that includes a maximum peak wavelength different from a maximum peak wavelength of the radiation, and a second light component having a second wavelength region of 400 nm to 460 nm, different from that of the radiation and the first wavelength region; an organic photoelectric conversion layer; and an insulating substrate provided with a charge detection layer, and that includes a storage capacitor and a thin film transistor having an oxide semiconductor active layer, wherein the first and second light components each pass through the organic photoelectric conversion layer and arrive at the oxide semiconductor active layer, and wherein an intensity of the second light component is lower than an intensity of the first light component.Type: GrantFiled: December 2, 2010Date of Patent: January 1, 2013Assignee: FUJIFILM CorporationInventor: Shinji Imai
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Patent number: 8344330Abstract: A radiation detector includes a semiconductor element capable of detecting a radiation, a substrate on which the semiconductor element is mounted, and a support member disposed adjacent to the semiconductor element for supporting the substrate. The substrate includes a first end portion on which the semiconductor element is mounted, and a second end portion opposite the first end portion for disposing the support member. The support member includes a first support and a second support, and the first support and the second support each includes a protrusion and an engagement hole for engaging with the protrusion. The protrusion of the first support engages with the engagement hole of the second support to fix the first support and the second support such that the substrate is compressed and supported by the first support and the second support.Type: GrantFiled: July 2, 2009Date of Patent: January 1, 2013Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Juhyun Yu, Yoshinori Sunaga, Hidetaka Kawauchi, Tsuneaki Kawaguchi, Isao Takahashi, Shinichi Inoue, Naoyuki Yamada, Masahiko Kobayashi
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Publication number: 20120318994Abstract: The control device allows a step of reading the leak data and a step of resetting each radiation detection element to be executed alternately before radiation image capturing. When the data exceed a threshold value, the irradiation start is detected and electric charge is accumulated. Then, the step of reading the image data is executed. After this, the control device further allows a step of reading the leak data and a step of resetting each radiation detection element to be performed alternately at the same cycle time as that in the step of reading the leak data and the step of resetting each radiation detection element performed before detecting the irradiation start. After transfer to the electric charge accumulation state, the control device further permits a step of reading the offset data to be executed at the same cycle time as that in the step of reading the image data.Type: ApplicationFiled: June 4, 2012Publication date: December 20, 2012Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventor: Hideaki TAJIMA
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Patent number: 8334516Abstract: A radiographic image capturing system includes an image capturing apparatus for applying radiation to a subject, a radiation detecting apparatus for detecting radiation transmitted through the subject, a power feeder for supplying electric power contactlessly to a contactless power receiver of the radiation detecting apparatus, a feeding-state determining unit for determining whether power-feeding by the power feeder is being performed or not, and a signal generator for generating an image-capturing inhibition signal for inhibiting radiographic image-capturing by the image capturing apparatus if the feeding-state determining unit judges that the power-feeding is being performed.Type: GrantFiled: March 23, 2010Date of Patent: December 18, 2012Assignee: Fujifilm CorporationInventors: Keiji Tsubota, Masato Hattori, Yutaka Yoshida, Yasunori Ohta, Naoyuki Nishino
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Patent number: 8334515Abstract: A radiographic image capturing system includes an image capturing apparatus for applying radiation to a subject, an electronic cassette serving as a radiation detecting apparatus for detecting radiation X transmitted through the subject, a power feeder for supplying electric power contactlessly to a contactless power receiver of the electronic cassette, an image-capturing-state determining unit for determining whether image-capturing by the radiation is being performed or not, and a signal generator for generating a feeding inhibition signal to inhibit the power feeder from supplying electric power contactlessly to the electronic cassette if the image-capturing-state determining unit judges that the image-capturing is being performed.Type: GrantFiled: December 7, 2009Date of Patent: December 18, 2012Assignee: Fujifilm CorporationInventors: Keiji Tsubota, Masato Hattori, Yutaka Yoshida, Yasunori Ohta, Naoyuki Nishino
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Publication number: 20120305785Abstract: In a method of manufacturing a detection device including a plurality of pixels arrayed on a substrate, the pixels each including a switch element and a conversion element including an impurity semiconductor layer disposed on an electrode, which is disposed above the switch element, which is isolated per pixel, and which is made of a transparent conductive oxide joined to the switch element, and further including an interlayer insulating layer, which is made of an organic material, which is disposed between the switch elements and the electrodes, and which covers the switch elements, the method includes insulating members each made of an inorganic material and disposed to cover the interlayer insulating layer between adjacent two of the electrodes in contact with the interlayer insulating layer, and forming an impurity semiconductor film covering the insulating members and the electrodes and becoming the impurity semiconductor layer.Type: ApplicationFiled: May 22, 2012Publication date: December 6, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Kentaro Fujiyoshi, Chiori Mochizuki, Minoru Watanabe, Masato Ofuji, Keigo Yokoyama, Jun Kawanabe, Hiroshi Wayama